Home / 1,896.96-2,618.48-1,111.24

Finding the Fourth Proportional to 1,896.96, 2,618.48 and 1,111.24

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Solution

The fourth proportional to 1,896.96, 2,618.48 and 1,111.24 is: 1,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.96 : 2,618.48 = 1,111.24 : x
  2. Step 2: Convert to fraction form
    1,896.96/2,618.48 = 1,111.24/x
  3. Step 3: Cross multiply
    1,896.96x = 2,618.48 × 1,111.24
  4. Step 4: Simplify right side
    1,896.96x = 2,909,759.72
  5. Step 5: Solve for x
    x = 2,909,759.72/1,896.96
  6. Step 6: Final answer
    x = 1,533.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.